NOTE: The WSQ is below the extra practice.
Since the answers are provided for you, you must have complete and correct work to receive credit.
- Monochromatic light falls on two very narrow slits 0.048 mm apart. Successive fringes on a screen 5.00 m away are 6.5 cm apart near the center of the pattern. Determine the wavelength and frequency of the light. [620 nm, 4.8E14 Hz]
- A 3500-line/cm grating produces a third-order fringe at a 28.0° angle. What wavelength of light is being used? [447 nm]
- Two narrow slits separated by 1.0 mm are illuminated by 544 nm light. Find the distance between adjacent bright fringes on a screen 5.0 m from the slits. [2.7 mm]